[Precision and safety of positioning pedicle screws in the thoracic and lumbar spine using a hand-guided aiming sleeve : A CT control study].

Background: For the implantation of pedicle screws, navigation-supported systems are nowadays used more and more to avoid screw misalignment by making the direction of the screw more predictable.

Objective: Examination of the precision after instrumentation of the pedicle screw with the hand-guided aiming sleeve. The aim was to verify that the implementation of the pedicle screws is plannable and precise by using 2D X‑ray only.

Neurotrauma Emergencies during the SARS-CoV2 Pandemic at a Tertiary Medical Center: Analysis of Incidence and Outcome.

Background:  We assess the impact of lockdown in Germany due to the COVID-19 pandemic on the incidence and outcome of neurotrauma emergencies at a tertiary medical center.

Methods:  All neurosurgical emergencies from March 16, 2020 (first lockdown in Germany) to January 31, 2021 were included and compared with a longitudinal case-cohort. Cases were descriptively recorded and retrospectively analyzed with respect to incidence and outcome.

Non-ischemic neurovascular emergencies at a supra-regional medical center during the SARS-CoV2-pandemia.

Objective: To assess the impact of the lockdown in Germany due to the SARS-CoV2-pandemic on the incidence and the outcome of neurovascular emergencies at a tertiary medical center.

Methods: From March 16th, 2020 (first lockdown in Germany) to January 31st, 2021, all neurosurgical emergencies were included and compared to a longitudinal case-cohort. Cases were descriptively recorded and retrospectively analyzed with respect to incidence and outcome.